On 6 March 2010 11:29, David Burgess
<dabsoft@gmail.com> wrote:
It seems to me that negative values of string.sub() are inconsistent with not only the first parameter but also with string.find().
Examples:
>s="123456789"
>=s:sub(-1)
9
>=s:sub(1,0)
>=s:sub(1,-1)
123456789
>=s:sub(1,-2)
12345678
>=s:find("56")
5 6
>=s:sub(1,6-2)
1234
>=s:sub(-1)
9
I am boldly suggesting that the second parameter with negative indices behave the same as the first. I guess this implies that the value 0 for
the second parameter would return the length of the string.
Maybe I have used too many similar functions in other languages but -1 meaning the last character seems intuitive to me.
Anyone else of a like view?
DB
I don't understand what your question/proposal is..... everything seems normal/sensible to me.
